Use better maintained go.bug.st/serial

This commit switches to serial port library to the better maintained
go.bug.st/serial library.

client/config.go

@@ -2,39 +2,25 @@ package main
 
 import (
 	"fmt"
-	"io/ioutil"
-	"time"
-
-	"github.com/goburrow/serial"
 	"github.com/sirupsen/logrus"
-	"gopkg.in/yaml.v2"
+	"go.bug.st/serial"
+	"gopkg.in/yaml.v3"
+	"io/ioutil"
 )
 
-type SerialConfig struct {
-	Address  string `yaml:"address"`
-	BaudRate int    `yaml:"baudrate"`
-	DataBits int    `yaml:"databits"`
-	StopBits int    `yaml:"stopbits"`
-	Parity   string `yaml:"parity"`
-}
-
 type ClientConfig struct {
-	Serial        SerialConfig `yaml:"serial_config"`
-	Paranoid      bool         `yaml:"paranoid"`
-	Debug         bool         `yaml:"debug"`
-	GNUPGBinary   string       `yaml:"gnupg_bin"`
-	OpenSSLBinary string       `yaml:"openssl_bin"`
-	MySQLDSN      string       `yaml:"mysql_dsn"`
+	SerialAddress string `yaml:"serial_address"`
+	BaudRate      int    `yaml:"serial_baudrate"`
+	Paranoid      bool   `yaml:"paranoid"`
+	Debug         bool   `yaml:"debug"`
+	GNUPGBinary   string `yaml:"gnupg_bin"`
+	OpenSSLBinary string `yaml:"openssl_bin"`
+	MySQLDSN      string `yaml:"mysql_dsn"`
 }
 
 var defaultConfig = ClientConfig{
-	Serial: SerialConfig{
-		Address:  "/dev/ttyUSB0",
-		BaudRate: 115200,
-		DataBits: 8,
-		StopBits: 1,
-		Parity:   "N",
-	},
+	SerialAddress: "/dev/ttyUSB0",
+	BaudRate:      115200,
 	Paranoid:      false,
 	Debug:         false,
 	OpenSSLBinary: "/usr/bin/openssl",
@@ -72,13 +58,11 @@ func readConfig(configFile string) (config *ClientConfig, err error) {
 	return config, nil
 }
 
-func fillSerialConfig(clientConfig *ClientConfig) *serial.Config {
-	return &serial.Config{
-		Address:  clientConfig.Serial.Address,
-		BaudRate: clientConfig.Serial.BaudRate,
-		DataBits: clientConfig.Serial.DataBits,
-		StopBits: clientConfig.Serial.StopBits,
-		Parity:   clientConfig.Serial.Parity,
-		Timeout:  30 * time.Second,
+func fillSerialMode(clientConfig *ClientConfig) *serial.Mode {
+	return &serial.Mode{
+		BaudRate: clientConfig.BaudRate,
+		DataBits: 8,
+		StopBits: serial.OneStopBit,
+		Parity:   serial.NoParity,
 	}
 }